Did Heracles kill Scylla

No, Heracles did not kill Scylla. In Greek mythology, Scylla was a sea monster who terrorized sailors, and she was ultimately transformed into her monstrous form due to a curse. Heracles encountered Scylla during his adventures, but he did not defeat her; instead, he faced other challenges, such as the monster Charybdis nearby. The story of Scylla primarily involves her interactions with Odysseus in the "Odyssey."